Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	11267	1781	16%	0.00	2319	1227	53%	6.0
10 Kinds of People	25747	5237	20%	0.01	4492	3224	72%	5.2
2048	10489	4799	46%	0.00	4650	3968	85%	2.7
2, 4, 6, Greaaat	769	115	15%	0.15	92	38	41%	9.4
3D Printed Statues	13925	6414	46%	0.00	6003	5375	90%	2.0
3D Printer	974	160	16%	0.00	400	122	30%	8.9
3-Sided Dice	2875	237	8%	0.00	472	165	35%	8.7
4 thought	12064	4161	34%	0.00	3994	3372	84%	2.7
A1 Paper	6572	1993	30%	0.00	1976	1571	80%	3.7
Aaah!	35072	16368	47%	0.00	14738	13750	93%	1.5
Abandoned Animal	2475	563	23%	0.03	644	474	74%	5.4
ABC	19173	8690	45%	0.00	8249	7474	91%	2.0
Ab Initio	1769	295	17%	0.09	264	162	61%	7.7
Above Average	12512	5226	42%	0.00	5027	4525	90%	1.8
A+B Problem	9470	935	10%	0.03	1365	451	33%	8.3
A Brief Gerrymander	532	107	20%	0.11	98	48	49%	8.8
Abstract Art	452	148	33%	0.00	122	90	74%	6.5
Abstract Painting	1069	431	40%	0.00	384	313	82%	4.0
Absurdistan Roads II	693	236	34%	0.00	234	156	67%	7.0
Absurdistan Roads III	1764	504	29%	0.02	476	362	76%	5.7
Access Points	489	168	34%	0.01	159	124	78%	5.8
Accounting	1592	465	29%	0.02	432	306	71%	4.6
A Classy Problem	12423	3260	26%	0.01	2825	2198	78%	4.4
ACM Contest Scoring	8329	5217	63%	0.00	4652	4400	95%	1.5
Add 'Em Up!	2526	602	24%	0.01	626	448	72%	4.9
Adding Words	13973	3456	25%	0.00	3256	2551	78%	3.7
Add Two Numbers	1038	770	74%	0.00	744	723	97%	1.2
A Different List Game	7466	518	7%	0.00	981	190	19%	9.3
A Different Problem	39666	14711	37%	0.00	13423	11638	87%	2.8
Adjoin the Networks	2627	679	26%	0.00	579	463	80%	5.6
Administrative Difficulties	1696	324	19%	0.03	352	240	68%	6.4
Ads	821	76	9%	0.00	150	52	35%	6.0
Advanced Causal Measurements	128	41	32%	0.10	41	32	78%	7.5
Adventure Begins	324	101	31%	0.06	108	82	76%	5.5
Adventures in Moving -- Part IV	1769	392	22%	0.00	338	279	83%	4.8
A Favourable Ending	1915	527	28%	0.00	490	384	78%	4.4
A Feast For Cats	3324	1255	38%	0.00	907	780	86%	3.6
A Flea on a Chessboard	961	194	20%	0.01	204	144	71%	5.3
A Horse Shoe-In	109	9	8%	0.45	17	8	47%	9.1
AI Jeopardy	485	59	12%	0.02	65	44	68%	6.1
Air Conditioned Minions	6835	2017	30%	0.00	2071	1607	78%	3.1
Airline Hub	2322	516	22%	0.01	459	274	60%	6.7
Airport Coffee	1293	263	20%	0.04	248	175	71%	6.8
Airport Construction	3648	466	13%	0.02	398	214	54%	7.7
Airport Logistics	70	18	26%	0.00	24	17	71%	7.0
Airports	566	168	30%	0.11	154	111	72%	6.0
Air Rally	6	0	0%	--	2	0	0%	7.3
Akcija	9485	4349	46%	0.00	3918	3507	90%	2.0
Aladin	860	99	12%	0.10	140	31	22%	8.7
Alchemy	175	34	19%	0.02	45	24	53%	8.9
Alchemy 101	458	148	32%	0.05	145	118	81%	3.8
Alea iacta est	45	16	36%	0.19	20	15	75%	6.6
Alehouse	794	334	42%	0.02	294	233	79%	4.7
Alex and Barb	1106	381	34%	0.00	440	344	78%	3.4
Alice in the Digital World	5972	1505	25%	0.01	1356	1072	79%	3.9
Alien Codebreaking	308	31	10%	3.23	56	16	29%	8.0
Alien Microwave	233	92	39%	0.00	122	89	73%	6.6
Alien Numbers	2918	1533	53%	0.00	1503	1375	91%	1.9
A List Game	10615	3237	30%	0.00	3105	2629	85%	2.9
All about that base	3259	1302	40%	0.00	1255	1060	84%	3.0
All Different Directions	1675	774	46%	0.00	735	656	89%	2.5
Allergy Test	637	159	25%	0.00	206	100	49%	8.1
All Friends	1144	217	19%	0.00	203	107	53%	8.8
All is Well	125	36	29%	0.03	34	29	85%	5.8
All Just A Dream	2648	694	26%	0.05	520	400	77%	5.4
All Kill	74	58	78%	0.00	44	36	82%	4.6
Alloys	783	288	37%	0.00	292	247	85%	3.7
All Pairs Shortest Path	13430	2546	19%	0.00	1624	1167	72%	5.7
Almost Perfect	12591	2872	23%	0.00	2937	2337	80%	3.0
Almost Union-Find	9907	1704	17%	0.02	1558	930	60%	6.6
Alphabet	2505	1279	51%	0.00	1210	1026	85%	3.2
Alphabet Animals	3546	1033	29%	0.00	958	783	82%	3.5
Alphabet Spam	10454	6532	62%	0.00	5521	5308	96%	1.4
Alternating Current	685	667	97%	0.00	115	112	97%	1.3 - 7.8
Alternative Anagram	257	82	32%	0.00	74	54	73%	7.9
Alternative Bracket Notation	234	100	43%	0.00	109	89	82%	5.6
Alto Singing	73	30	41%	0.00	31	28	90%	5.1
Altruistic Amphibians	531	144	27%	0.22	121	90	74%	5.1
Amalgamated Artichokes	5044	2261	45%	0.01	1989	1757	88%	2.5
Amanda Lounges	1886	567	30%	0.03	479	391	82%	5.3
A Mazing!	3847	1014	26%	0.09	386	290	75%	5.6
Amazing Adventures	440	132	30%	0.02	151	108	72%	5.9
Amazing Race	439	112	26%	0.29	114	82	72%	6.4
Ambiguous Result	296	66	22%	0.02	97	61	63%	7.1
Amsterdam Distance	2213	1099	50%	0.00	1117	956	86%	2.6
A Multiplication Game	1242	510	41%	0.00	543	424	78%	4.1
Anagram Counting	4628	1854	40%	0.00	1788	1507	84%	2.8
Andrew the Ant	502	150	30%	0.05	158	122	77%	4.7
A New Adventure	1397	209	15%	0.00	218	152	70%	6.0
A New Alphabet	13577	6094	45%	0.00	5703	5245	92%	2.2
An I for an Eye	1256	359	29%	0.00	410	306	75%	4.8
Animal Classification	1666	392	24%	0.03	329	222	67%	6.8
An Industrial Spy	2202	1200	54%	0.02	951	834	88%	3.0
Annoyed Coworkers	273	56	21%	0.04	51	43	84%	4.4
Another Brick in the Wall	4160	2132	51%	0.00	2065	1889	91%	2.0
Another Candies	9935	2778	28%	0.00	2803	2349	84%	2.6
Another Coin Weighing Puzzle	548	154	28%	0.00	133	106	80%	6.5
Another Dice Game	128	80	62%	0.00	81	68	84%	4.4
Another Query on Array Problem	1922	237	12%	0.05	382	169	44%	7.9
Another Substring Query Problem	735	123	17%	0.18	192	81	42%	8.4